This fixes a bug in "api.v2.utils.do_init()" where an URL can be
misformatted if the suffix does not have a heading '/'.
Co-Authored-By: Luka Peschke <luka.peschke@objectif-libre.com>
Change-Id: I40ef5e24c2294421c63f745500503af19c9a10d4
Story: 2006609
Task: 36778